Home / 15,239,116.76-21,029,995.37-8,712,882.87

Finding the Fourth Proportional to 15,239,116.76, 21,029,995.37 and 8,712,882.87

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Solution

The fourth proportional to 15,239,116.76, 21,029,995.37 and 8,712,882.87 is: 12,023,786.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239,116.76 : 21,029,995.37 = 8,712,882.87 : x
  2. Step 2: Convert to fraction form
    15,239,116.76/21,029,995.37 = 8,712,882.87/x
  3. Step 3: Cross multiply
    15,239,116.76x = 21,029,995.37 × 8,712,882.87
  4. Step 4: Simplify right side
    15,239,116.76x = 183,231,886,371,887.88
  5. Step 5: Solve for x
    x = 183,231,886,371,887.88/15,239,116.76
  6. Step 6: Final answer
    x = 12,023,786.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.