Home / 13,968.81-19,276.47-7,681.14

Finding the Fourth Proportional to 13,968.81, 19,276.47 and 7,681.14

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Solution

The fourth proportional to 13,968.81, 19,276.47 and 7,681.14 is: 10,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.81 : 19,276.47 = 7,681.14 : x
  2. Step 2: Convert to fraction form
    13,968.81/19,276.47 = 7,681.14/x
  3. Step 3: Cross multiply
    13,968.81x = 19,276.47 × 7,681.14
  4. Step 4: Simplify right side
    13,968.81x = 148,065,264.78
  5. Step 5: Solve for x
    x = 148,065,264.78/13,968.81
  6. Step 6: Final answer
    x = 10,599.70

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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.