Home / 10,528.38-14,528.16-6,280.74

Finding the Fourth Proportional to 10,528.38, 14,528.16 and 6,280.74

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Solution

The fourth proportional to 10,528.38, 14,528.16 and 6,280.74 is: 8,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,528.38 : 14,528.16 = 6,280.74 : x
  2. Step 2: Convert to fraction form
    10,528.38/14,528.16 = 6,280.74/x
  3. Step 3: Cross multiply
    10,528.38x = 14,528.16 × 6,280.74
  4. Step 4: Simplify right side
    10,528.38x = 91,247,595.64
  5. Step 5: Solve for x
    x = 91,247,595.64/10,528.38
  6. Step 6: Final answer
    x = 8,666.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.