Home / 14,408.72-19,887.80-9,386.72

Finding the Fourth Proportional to 14,408.72, 19,887.80 and 9,386.72

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Solution

The fourth proportional to 14,408.72, 19,887.80 and 9,386.72 is: 12,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.72 : 19,887.80 = 9,386.72 : x
  2. Step 2: Convert to fraction form
    14,408.72/19,887.80 = 9,386.72/x
  3. Step 3: Cross multiply
    14,408.72x = 19,887.80 × 9,386.72
  4. Step 4: Simplify right side
    14,408.72x = 186,681,210.02
  5. Step 5: Solve for x
    x = 186,681,210.02/14,408.72
  6. Step 6: Final answer
    x = 12,956.13

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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.