Home / 10,020.60-15,030.90-8,897.40

Finding the Fourth Proportional to 10,020.60, 15,030.90 and 8,897.40

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Solution

The fourth proportional to 10,020.60, 15,030.90 and 8,897.40 is: 13,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.60 : 15,030.90 = 8,897.40 : x
  2. Step 2: Convert to fraction form
    10,020.60/15,030.90 = 8,897.40/x
  3. Step 3: Cross multiply
    10,020.60x = 15,030.90 × 8,897.40
  4. Step 4: Simplify right side
    10,020.60x = 133,735,929.66
  5. Step 5: Solve for x
    x = 133,735,929.66/10,020.60
  6. Step 6: Final answer
    x = 13,346.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.