Home / 13,921.00-19,210.77-7,547.41

Finding the Fourth Proportional to 13,921.00, 19,210.77 and 7,547.41

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Solution

The fourth proportional to 13,921.00, 19,210.77 and 7,547.41 is: 10,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.00 : 19,210.77 = 7,547.41 : x
  2. Step 2: Convert to fraction form
    13,921.00/19,210.77 = 7,547.41/x
  3. Step 3: Cross multiply
    13,921.00x = 19,210.77 × 7,547.41
  4. Step 4: Simplify right side
    13,921.00x = 144,991,581.62
  5. Step 5: Solve for x
    x = 144,991,581.62/13,921.00
  6. Step 6: Final answer
    x = 10,415.32

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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.