Home / 14,603.18-20,152.36-7,888.78

Finding the Fourth Proportional to 14,603.18, 20,152.36 and 7,888.78

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Solution

The fourth proportional to 14,603.18, 20,152.36 and 7,888.78 is: 10,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.18 : 20,152.36 = 7,888.78 : x
  2. Step 2: Convert to fraction form
    14,603.18/20,152.36 = 7,888.78/x
  3. Step 3: Cross multiply
    14,603.18x = 20,152.36 × 7,888.78
  4. Step 4: Simplify right side
    14,603.18x = 158,977,550.46
  5. Step 5: Solve for x
    x = 158,977,550.46/14,603.18
  6. Step 6: Final answer
    x = 10,886.51

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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.