Home / 13,865.18-19,133.90-7,577.56

Finding the Fourth Proportional to 13,865.18, 19,133.90 and 7,577.56

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Solution

The fourth proportional to 13,865.18, 19,133.90 and 7,577.56 is: 10,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.18 : 19,133.90 = 7,577.56 : x
  2. Step 2: Convert to fraction form
    13,865.18/19,133.90 = 7,577.56/x
  3. Step 3: Cross multiply
    13,865.18x = 19,133.90 × 7,577.56
  4. Step 4: Simplify right side
    13,865.18x = 144,988,275.28
  5. Step 5: Solve for x
    x = 144,988,275.28/13,865.18
  6. Step 6: Final answer
    x = 10,457.01

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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.