Home / 13,342.16-18,412.88-7,677.77

Finding the Fourth Proportional to 13,342.16, 18,412.88 and 7,677.77

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Solution

The fourth proportional to 13,342.16, 18,412.88 and 7,677.77 is: 10,595.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.16 : 18,412.88 = 7,677.77 : x
  2. Step 2: Convert to fraction form
    13,342.16/18,412.88 = 7,677.77/x
  3. Step 3: Cross multiply
    13,342.16x = 18,412.88 × 7,677.77
  4. Step 4: Simplify right side
    13,342.16x = 141,369,857.68
  5. Step 5: Solve for x
    x = 141,369,857.68/13,342.16
  6. Step 6: Final answer
    x = 10,595.72

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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.