Home / 10,347.40-14,278.68-5,631.58

Finding the Fourth Proportional to 10,347.40, 14,278.68 and 5,631.58

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Solution

The fourth proportional to 10,347.40, 14,278.68 and 5,631.58 is: 7,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.40 : 14,278.68 = 5,631.58 : x
  2. Step 2: Convert to fraction form
    10,347.40/14,278.68 = 5,631.58/x
  3. Step 3: Cross multiply
    10,347.40x = 14,278.68 × 5,631.58
  4. Step 4: Simplify right side
    10,347.40x = 80,411,528.71
  5. Step 5: Solve for x
    x = 80,411,528.71/10,347.40
  6. Step 6: Final answer
    x = 7,771.18

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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.