Home / 10,985.31-15,158.51-6,204.74

Finding the Fourth Proportional to 10,985.31, 15,158.51 and 6,204.74

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Solution

The fourth proportional to 10,985.31, 15,158.51 and 6,204.74 is: 8,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.31 : 15,158.51 = 6,204.74 : x
  2. Step 2: Convert to fraction form
    10,985.31/15,158.51 = 6,204.74/x
  3. Step 3: Cross multiply
    10,985.31x = 15,158.51 × 6,204.74
  4. Step 4: Simplify right side
    10,985.31x = 94,054,666.75
  5. Step 5: Solve for x
    x = 94,054,666.75/10,985.31
  6. Step 6: Final answer
    x = 8,561.86

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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.