Home / 14,139.25-19,511.18-7,851.13

Finding the Fourth Proportional to 14,139.25, 19,511.18 and 7,851.13

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Solution

The fourth proportional to 14,139.25, 19,511.18 and 7,851.13 is: 10,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.25 : 19,511.18 = 7,851.13 : x
  2. Step 2: Convert to fraction form
    14,139.25/19,511.18 = 7,851.13/x
  3. Step 3: Cross multiply
    14,139.25x = 19,511.18 × 7,851.13
  4. Step 4: Simplify right side
    14,139.25x = 153,184,810.63
  5. Step 5: Solve for x
    x = 153,184,810.63/14,139.25
  6. Step 6: Final answer
    x = 10,834.01

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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.