Home / 13,931.04-19,224.72-7,643.36

Finding the Fourth Proportional to 13,931.04, 19,224.72 and 7,643.36

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Solution

The fourth proportional to 13,931.04, 19,224.72 and 7,643.36 is: 10,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.04 : 19,224.72 = 7,643.36 : x
  2. Step 2: Convert to fraction form
    13,931.04/19,224.72 = 7,643.36/x
  3. Step 3: Cross multiply
    13,931.04x = 19,224.72 × 7,643.36
  4. Step 4: Simplify right side
    13,931.04x = 146,941,455.86
  5. Step 5: Solve for x
    x = 146,941,455.86/13,931.04
  6. Step 6: Final answer
    x = 10,547.77

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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.