Home / 14,510.78-20,017.51-9,477.95

Finding the Fourth Proportional to 14,510.78, 20,017.51 and 9,477.95

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Solution

The fourth proportional to 14,510.78, 20,017.51 and 9,477.95 is: 13,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,510.78 : 20,017.51 = 9,477.95 : x
  2. Step 2: Convert to fraction form
    14,510.78/20,017.51 = 9,477.95/x
  3. Step 3: Cross multiply
    14,510.78x = 20,017.51 × 9,477.95
  4. Step 4: Simplify right side
    14,510.78x = 189,724,985.25
  5. Step 5: Solve for x
    x = 189,724,985.25/14,510.78
  6. Step 6: Final answer
    x = 13,074.76

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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.