Home / 8,470.49-11,688.30-4,692.71

Finding the Fourth Proportional to 8,470.49, 11,688.30 and 4,692.71

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Solution

The fourth proportional to 8,470.49, 11,688.30 and 4,692.71 is: 6,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.49 : 11,688.30 = 4,692.71 : x
  2. Step 2: Convert to fraction form
    8,470.49/11,688.30 = 4,692.71/x
  3. Step 3: Cross multiply
    8,470.49x = 11,688.30 × 4,692.71
  4. Step 4: Simplify right side
    8,470.49x = 54,849,831.51
  5. Step 5: Solve for x
    x = 54,849,831.51/8,470.49
  6. Step 6: Final answer
    x = 6,475.41

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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.