Home / 13,862.21-19,124.43-8,547.80

Finding the Fourth Proportional to 13,862.21, 19,124.43 and 8,547.80

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Solution

The fourth proportional to 13,862.21, 19,124.43 and 8,547.80 is: 11,792.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.21 : 19,124.43 = 8,547.80 : x
  2. Step 2: Convert to fraction form
    13,862.21/19,124.43 = 8,547.80/x
  3. Step 3: Cross multiply
    13,862.21x = 19,124.43 × 8,547.80
  4. Step 4: Simplify right side
    13,862.21x = 163,471,802.75
  5. Step 5: Solve for x
    x = 163,471,802.75/13,862.21
  6. Step 6: Final answer
    x = 11,792.62

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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.