Home / 13,931.64-19,224.90-7,643.52

Finding the Fourth Proportional to 13,931.64, 19,224.90 and 7,643.52

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Solution

The fourth proportional to 13,931.64, 19,224.90 and 7,643.52 is: 10,547.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.64 : 19,224.90 = 7,643.52 : x
  2. Step 2: Convert to fraction form
    13,931.64/19,224.90 = 7,643.52/x
  3. Step 3: Cross multiply
    13,931.64x = 19,224.90 × 7,643.52
  4. Step 4: Simplify right side
    13,931.64x = 146,945,907.65
  5. Step 5: Solve for x
    x = 146,945,907.65/13,931.64
  6. Step 6: Final answer
    x = 10,547.64

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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.