Home / 13,312.76-19,969.14-12,500.84

Finding the Fourth Proportional to 13,312.76, 19,969.14 and 12,500.84

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Solution

The fourth proportional to 13,312.76, 19,969.14 and 12,500.84 is: 18,751.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.76 : 19,969.14 = 12,500.84 : x
  2. Step 2: Convert to fraction form
    13,312.76/19,969.14 = 12,500.84/x
  3. Step 3: Cross multiply
    13,312.76x = 19,969.14 × 12,500.84
  4. Step 4: Simplify right side
    13,312.76x = 249,631,024.08
  5. Step 5: Solve for x
    x = 249,631,024.08/13,312.76
  6. Step 6: Final answer
    x = 18,751.26

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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.