Home / 10,985.88-15,159.90-6,510.06

Finding the Fourth Proportional to 10,985.88, 15,159.90 and 6,510.06

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Solution

The fourth proportional to 10,985.88, 15,159.90 and 6,510.06 is: 8,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.88 : 15,159.90 = 6,510.06 : x
  2. Step 2: Convert to fraction form
    10,985.88/15,159.90 = 6,510.06/x
  3. Step 3: Cross multiply
    10,985.88x = 15,159.90 × 6,510.06
  4. Step 4: Simplify right side
    10,985.88x = 98,691,858.59
  5. Step 5: Solve for x
    x = 98,691,858.59/10,985.88
  6. Step 6: Final answer
    x = 8,983.52

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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.