Home / 19,130.76-28,666.98-8,730.36

Finding the Fourth Proportional to 19,130.76, 28,666.98 and 8,730.36

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Solution

The fourth proportional to 19,130.76, 28,666.98 and 8,730.36 is: 13,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.76 : 28,666.98 = 8,730.36 : x
  2. Step 2: Convert to fraction form
    19,130.76/28,666.98 = 8,730.36/x
  3. Step 3: Cross multiply
    19,130.76x = 28,666.98 × 8,730.36
  4. Step 4: Simplify right side
    19,130.76x = 250,273,055.51
  5. Step 5: Solve for x
    x = 250,273,055.51/19,130.76
  6. Step 6: Final answer
    x = 13,082.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.