Home / 13,347.16-18,426.58-8,877

Finding the Fourth Proportional to 13,347.16, 18,426.58 and 8,877

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Solution

The fourth proportional to 13,347.16, 18,426.58 and 8,877 is: 12,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.16 : 18,426.58 = 8,877 : x
  2. Step 2: Convert to fraction form
    13,347.16/18,426.58 = 8,877/x
  3. Step 3: Cross multiply
    13,347.16x = 18,426.58 × 8,877
  4. Step 4: Simplify right side
    13,347.16x = 163,572,750.66
  5. Step 5: Solve for x
    x = 163,572,750.66/13,347.16
  6. Step 6: Final answer
    x = 12,255.25

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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.