Home / 10,071.60-15,107.40-9,898.80

Finding the Fourth Proportional to 10,071.60, 15,107.40 and 9,898.80

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Solution

The fourth proportional to 10,071.60, 15,107.40 and 9,898.80 is: 14,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.60 : 15,107.40 = 9,898.80 : x
  2. Step 2: Convert to fraction form
    10,071.60/15,107.40 = 9,898.80/x
  3. Step 3: Cross multiply
    10,071.60x = 15,107.40 × 9,898.80
  4. Step 4: Simplify right side
    10,071.60x = 149,545,131.12
  5. Step 5: Solve for x
    x = 149,545,131.12/10,071.60
  6. Step 6: Final answer
    x = 14,848.20

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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.