Home / 15,464.79-21,341.40-8,750.26

Finding the Fourth Proportional to 15,464.79, 21,341.40 and 8,750.26

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Solution

The fourth proportional to 15,464.79, 21,341.40 and 8,750.26 is: 12,075.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.79 : 21,341.40 = 8,750.26 : x
  2. Step 2: Convert to fraction form
    15,464.79/21,341.40 = 8,750.26/x
  3. Step 3: Cross multiply
    15,464.79x = 21,341.40 × 8,750.26
  4. Step 4: Simplify right side
    15,464.79x = 186,742,798.76
  5. Step 5: Solve for x
    x = 186,742,798.76/15,464.79
  6. Step 6: Final answer
    x = 12,075.35

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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.