Home / 10,435.40-14,392.47-9,173.78

Finding the Fourth Proportional to 10,435.40, 14,392.47 and 9,173.78

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Solution

The fourth proportional to 10,435.40, 14,392.47 and 9,173.78 is: 12,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.40 : 14,392.47 = 9,173.78 : x
  2. Step 2: Convert to fraction form
    10,435.40/14,392.47 = 9,173.78/x
  3. Step 3: Cross multiply
    10,435.40x = 14,392.47 × 9,173.78
  4. Step 4: Simplify right side
    10,435.40x = 132,033,389.42
  5. Step 5: Solve for x
    x = 132,033,389.42/10,435.40
  6. Step 6: Final answer
    x = 12,652.45

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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.