Home / 10,377.60-15,566.40-10,312.80

Finding the Fourth Proportional to 10,377.60, 15,566.40 and 10,312.80

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Solution

The fourth proportional to 10,377.60, 15,566.40 and 10,312.80 is: 15,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377.60 : 15,566.40 = 10,312.80 : x
  2. Step 2: Convert to fraction form
    10,377.60/15,566.40 = 10,312.80/x
  3. Step 3: Cross multiply
    10,377.60x = 15,566.40 × 10,312.80
  4. Step 4: Simplify right side
    10,377.60x = 160,533,169.92
  5. Step 5: Solve for x
    x = 160,533,169.92/10,377.60
  6. Step 6: Final answer
    x = 15,469.20

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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.