Home / 10,089.13-13,923.45-8,407.72

Finding the Fourth Proportional to 10,089.13, 13,923.45 and 8,407.72

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Solution

The fourth proportional to 10,089.13, 13,923.45 and 8,407.72 is: 11,603.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.13 : 13,923.45 = 8,407.72 : x
  2. Step 2: Convert to fraction form
    10,089.13/13,923.45 = 8,407.72/x
  3. Step 3: Cross multiply
    10,089.13x = 13,923.45 × 8,407.72
  4. Step 4: Simplify right side
    10,089.13x = 117,064,448.01
  5. Step 5: Solve for x
    x = 117,064,448.01/10,089.13
  6. Step 6: Final answer
    x = 11,603.03

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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.