Home / 10,085.60-15,140.55-10,012.70

Finding the Fourth Proportional to 10,085.60, 15,140.55 and 10,012.70

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Solution

The fourth proportional to 10,085.60, 15,140.55 and 10,012.70 is: 15,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.60 : 15,140.55 = 10,012.70 : x
  2. Step 2: Convert to fraction form
    10,085.60/15,140.55 = 10,012.70/x
  3. Step 3: Cross multiply
    10,085.60x = 15,140.55 × 10,012.70
  4. Step 4: Simplify right side
    10,085.60x = 151,597,784.99
  5. Step 5: Solve for x
    x = 151,597,784.99/10,085.60
  6. Step 6: Final answer
    x = 15,031.11

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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.