Home / 19,485.13-26,888.47-10,987.01

Finding the Fourth Proportional to 19,485.13, 26,888.47 and 10,987.01

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Solution

The fourth proportional to 19,485.13, 26,888.47 and 10,987.01 is: 15,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.13 : 26,888.47 = 10,987.01 : x
  2. Step 2: Convert to fraction form
    19,485.13/26,888.47 = 10,987.01/x
  3. Step 3: Cross multiply
    19,485.13x = 26,888.47 × 10,987.01
  4. Step 4: Simplify right side
    19,485.13x = 295,423,928.53
  5. Step 5: Solve for x
    x = 295,423,928.53/19,485.13
  6. Step 6: Final answer
    x = 15,161.51

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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.