Home / 15,437.40-21,303.63-8,363.82

Finding the Fourth Proportional to 15,437.40, 21,303.63 and 8,363.82

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Solution

The fourth proportional to 15,437.40, 21,303.63 and 8,363.82 is: 11,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.40 : 21,303.63 = 8,363.82 : x
  2. Step 2: Convert to fraction form
    15,437.40/21,303.63 = 8,363.82/x
  3. Step 3: Cross multiply
    15,437.40x = 21,303.63 × 8,363.82
  4. Step 4: Simplify right side
    15,437.40x = 178,179,726.67
  5. Step 5: Solve for x
    x = 178,179,726.67/15,437.40
  6. Step 6: Final answer
    x = 11,542.08

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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.