Home / 14,545.07-20,070.74-8,172.40

Finding the Fourth Proportional to 14,545.07, 20,070.74 and 8,172.40

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Solution

The fourth proportional to 14,545.07, 20,070.74 and 8,172.40 is: 11,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.07 : 20,070.74 = 8,172.40 : x
  2. Step 2: Convert to fraction form
    14,545.07/20,070.74 = 8,172.40/x
  3. Step 3: Cross multiply
    14,545.07x = 20,070.74 × 8,172.40
  4. Step 4: Simplify right side
    14,545.07x = 164,026,015.22
  5. Step 5: Solve for x
    x = 164,026,015.22/14,545.07
  6. Step 6: Final answer
    x = 11,277.09

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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.