Home / 10,281.20-15,348.76-9,916.70

Finding the Fourth Proportional to 10,281.20, 15,348.76 and 9,916.70

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Solution

The fourth proportional to 10,281.20, 15,348.76 and 9,916.70 is: 14,804.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.20 : 15,348.76 = 9,916.70 : x
  2. Step 2: Convert to fraction form
    10,281.20/15,348.76 = 9,916.70/x
  3. Step 3: Cross multiply
    10,281.20x = 15,348.76 × 9,916.70
  4. Step 4: Simplify right side
    10,281.20x = 152,208,946.76
  5. Step 5: Solve for x
    x = 152,208,946.76/10,281.20
  6. Step 6: Final answer
    x = 14,804.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.